Duelist title cataclysm BG?

Hey I was just wondering:

What's the cutoff for duelist title in catalcysm battlegroup?
If I am in range which I highly doubt: Am I still eligible for the title when my account is frozen and I am inactive?
Am I still eligible for the title when my rating is more than 100 higher of the teamrating?
Am I still eligible for the title when I'm the only player in the team?

Quitted WoW about 2 months ago, might play again in 5.4. Team rating is 2153 and Personal rating is 2258.